Convert //ios from scoped_ptr to std::unique_ptr.

ios/chrome/browser/ui/webui/history/browsing_history_handler.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ios/chrome/browser/ui/webui/history/browsing_history_handler.h"
 
 #include <stddef.h>
 
 #include <set>
 
@@ skipping 92 matching lines @@
 void GetDeviceNameAndType(const ProfileSyncService* sync_service,
                           const std::string& client_id,
                           std::string* name,
                           std::string* type) {
   // DeviceInfoTracker must be syncing in order for remote history entries to
   // be available.
   DCHECK(sync_service);
   DCHECK(sync_service->GetDeviceInfoTracker());
   DCHECK(sync_service->GetDeviceInfoTracker()->IsSyncing());
 
-  scoped_ptr<sync_driver::DeviceInfo> device_info =
+  std::unique_ptr<sync_driver::DeviceInfo> device_info =
       sync_service->GetDeviceInfoTracker()->GetDeviceInfo(client_id);
   if (device_info.get()) {
     *name = device_info->client_name();
     switch (device_info->device_type()) {
       case sync_pb::SyncEnums::TYPE_PHONE:
         *type = kDeviceTypePhone;
         break;
       case sync_pb::SyncEnums::TYPE_TABLET:
         *type = kDeviceTypeTablet;
         break;
@@ skipping 51 matching lines @@
   // left to right strings.
   if (base::i18n::IsRTL()) {
     if (using_url_as_the_title)
       base::i18n::WrapStringWithLTRFormatting(&title_to_set);
     else
       base::i18n::AdjustStringForLocaleDirection(&title_to_set);
   }
   result->SetString("title", title_to_set);
 }
 
-scoped_ptr<base::DictionaryValue> BrowsingHistoryHandler::HistoryEntry::ToValue(
+std::unique_ptr<base::DictionaryValue>
+BrowsingHistoryHandler::HistoryEntry::ToValue(
     BookmarkModel* bookmark_model,
     SupervisedUserService* supervised_user_service,
     const ProfileSyncService* sync_service) const {
-  scoped_ptr<base::DictionaryValue> result(new base::DictionaryValue());
+  std::unique_ptr<base::DictionaryValue> result(new base::DictionaryValue());
   SetUrlAndTitle(result.get());
 
   base::string16 domain = url_formatter::IDNToUnicode(url.host());
   // When the domain is empty, use the scheme instead. This allows for a
   // sensible treatment of e.g. file: URLs when group by domain is on.
   if (domain.empty())
     domain = base::UTF8ToUTF16(url.scheme() + ":");
 
   // The items which are to be written into result are also described in
   // chrome/browser/resources/history/history.js in @typedef for
   // HistoryEntry. Please update it whenever you add or remove
   // any keys in result.
   result->SetString("domain", domain);
   result->SetDouble("time", time.ToJsTime());
 
   // Pass the timestamps in a list.
-  scoped_ptr<base::ListValue> timestamps(new base::ListValue);
+  std::unique_ptr<base::ListValue> timestamps(new base::ListValue);
   for (int64_t timestamp : all_timestamps) {
     timestamps->AppendDouble(
         base::Time::FromInternalValue(timestamp).ToJsTime());
   }
   result->Set("allTimestamps", timestamps.release());
 
   // Always pass the short date since it is needed both in the search and in
   // the monthly view.
   result->SetString("dateShort", base::TimeFormatShortDate(time));
 
@@ skipping 365 matching lines @@
       int missing_count = std::count_if(
           query_results_.begin(), query_results_.end(), IsLocalOnlyResult);
       UMA_HISTOGRAM_PERCENTAGE("WebHistory.LocalResultMissingOnServer",
                                missing_count * 100.0 / local_result_count);
     }
   }
 
   // Convert the result vector into a ListValue.
   base::ListValue results_value;
   for (const BrowsingHistoryHandler::HistoryEntry& entry : query_results_) {
-    scoped_ptr<base::Value> value(
+    std::unique_ptr<base::Value> value(
         entry.ToValue(bookmark_model, nullptr, sync_service));
     results_value.Append(value.release());
   }
 
   web_ui()->CallJavascriptFunction("historyResult", results_info_value_,
                                    results_value);
   results_info_value_.Clear();
   query_results_.clear();
   web_history_query_results_.clear();
 }
@@ skipping 195 matching lines @@
 
 void BrowsingHistoryHandler::OnURLsDeleted(
     history::HistoryService* history_service,
     bool all_history,
     bool expired,
     const history::URLRows& deleted_rows,
     const std::set<GURL>& favicon_urls) {
   if (all_history || DeletionsDiffer(deleted_rows, urls_to_be_deleted_))
     web_ui()->CallJavascriptFunction("historyDeleted");
 }